maniac, who after killing smith, waited all day for her 5-year-old son to come walking home from school, walking through these sliding glass doors. nicholas smith was stabbed 18 times and survived. he's now 22. and after jurors read the verdict, he and his family hugged and cried. >> she was a beautiful, caring outgoing mom, whose son, nick, was the number one thing in her life. she was taken from us way too soon by a stabbing monster. >> reporter: when he testified, nicholas smith broke down, telling jurors the killer was wearing a mask. so, he couldn't see his face. >> i could kind of see when they ran past the window in the room. but they it was really dark. and they were wearing really dark clothes. >> reporter: loretta blatz, the object of his affection, and the woman he stalked, couldn't believe she had to answer questions from the man who turned her life upside down. >> it's entirely inappropriate. >> it's really inappropriate that you stalked me and harassed me.